Home / 11,755.43-16,221.87-6,718.99

Finding the Fourth Proportional to 11,755.43, 16,221.87 and 6,718.99

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Solution

The fourth proportional to 11,755.43, 16,221.87 and 6,718.99 is: 9,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.43 : 16,221.87 = 6,718.99 : x
  2. Step 2: Convert to fraction form
    11,755.43/16,221.87 = 6,718.99/x
  3. Step 3: Cross multiply
    11,755.43x = 16,221.87 × 6,718.99
  4. Step 4: Simplify right side
    11,755.43x = 108,994,501.20
  5. Step 5: Solve for x
    x = 108,994,501.20/11,755.43
  6. Step 6: Final answer
    x = 9,271.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.